The present disclosure generally provides systems and methods of classifying financial transactions. In one embodiment, the present disclosure may generally include a system of classifying financial transactions. The system may include a processor coupled to a database. The processor may be programmed to receive transaction information and a source document associated with a financial transaction. The transaction information and source data associated with the source document may be stored in the database. The stored transaction information and the source data may be retrieved from the database and may form a basis for a determination of a code associated with the financial transaction.